How to Insulate a House on Stilts

Find out how to insulate a beach house that is on stilts. Get tips on adding fiberglass insulation between the floor joists and adding blue Styrofoam foam board over that.

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LESLIE: Sandra in Florida needs some help with her stilted beach house. Tell us about it.

SANDRA: Yes. I have a beach house and it gets really cold in the winter, because it has only plywood underneath and carpeting on top of the plywood and a whole floor that is on stilts underneath that where the air can just go through. And so I was wondering – the wiring is all in between the joists and so I’m wondering if there’s any way I can insulate that where we would still be able to get to the wiring if there were a problem. Yeah, it’s exposed to the elements.

TOM: No, you can just add fiberglass insulation. Now, if the fiberglass is exposed – not sure if you have any type of covering on the underside of that beach house. But if the fiberglass is exposed – another thing that you could do is you could use the blue Styrofoam sort of foam board as the bottom there. So you would fiberglass in between the floor joists and you would add the blue foam over that, make sure it’s properly attached and you should be good to go.

SANDRA: Thank you so much.

TOM: You’re very welcome. Thanks so much for calling us at 888-MONEY-PIT.